﻿using System;
using System.Collections.Generic;
using System.Text;
using System.Xml.Serialization;

namespace primeira.pNeuron.Core2
{
    
    /// <summary>
    /// Serializable Dictionary.
    /// Thanks to http://weblogs.asp.net/pwelter34/archive/2006/05/03/444961.aspx
    /// </summary>
    /// <typeparam name="TKey"></typeparam>
    /// <typeparam name="TValue"></typeparam>
    public class Dictionary<TKey, TValue> : System.Collections.Generic.Dictionary<TKey, TValue>, IXmlSerializable
    {

        #region IXmlSerializable Members

        public System.Xml.Schema.XmlSchema GetSchema()
        {
            return null;
        }
        public void ReadXml(System.Xml.XmlReader reader)
        {

            XmlSerializer keySerializer = new XmlSerializer(typeof(TKey));

            XmlSerializer valueSerializer = new XmlSerializer(typeof(TValue));
            bool wasEmpty = reader.IsEmptyElement;

            reader.Read();
            if (wasEmpty)

                return;
            while (reader.NodeType != System.Xml.XmlNodeType.EndElement)
            {

                reader.ReadStartElement("item");
                reader.ReadStartElement("key");

                TKey key = (TKey)keySerializer.Deserialize(reader);

                reader.ReadEndElement();
                reader.ReadStartElement("value");

                TValue value = (TValue)valueSerializer.Deserialize(reader);

                reader.ReadEndElement();
                this.Add(key, value);
                reader.ReadEndElement();

                reader.MoveToContent();

            }

            reader.ReadEndElement();

        }
        public void WriteXml(System.Xml.XmlWriter writer)
        {

            XmlSerializer keySerializer = new XmlSerializer(typeof(TKey));

            XmlSerializer valueSerializer = new XmlSerializer(typeof(TValue));
            foreach (TKey key in this.Keys)
            {

                writer.WriteStartElement("item");
                writer.WriteStartElement("key");

                keySerializer.Serialize(writer, key);

                writer.WriteEndElement();
                writer.WriteStartElement("value");

                TValue value = this[key];

                valueSerializer.Serialize(writer, value);

                writer.WriteEndElement();
                writer.WriteEndElement();

            }

        }

        #endregion

    }
}
